/*
 * Created : 2004/May/26
 *
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details ( see the LICENSE file ).
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.gudy.azureus2.pluginsimpl.local.disk;

import java.io.File;

import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.plugins.disk.DiskManagerChannel;
import org.gudy.azureus2.plugins.disk.DiskManagerFileInfo;
import org.gudy.azureus2.plugins.disk.DiskManagerListener;
import org.gudy.azureus2.plugins.disk.DiskManagerRandomReadRequest;
import org.gudy.azureus2.plugins.download.Download;
import org.gudy.azureus2.plugins.download.DownloadException;
import org.gudy.azureus2.pluginsimpl.local.download.DownloadImpl;
import org.gudy.azureus2.pluginsimpl.local.download.DownloadManagerImpl;

/**
 * @author TuxPaper
 * 
 */

public class DiskManagerFileInfoImpl implements DiskManagerFileInfo {
    protected DownloadImpl download;
    protected org.gudy.azureus2.core3.disk.DiskManagerFileInfo core;

    public DiskManagerFileInfoImpl(DownloadImpl _download, org.gudy.azureus2.core3.disk.DiskManagerFileInfo coreFileInfo) {
        core = coreFileInfo;
        download = _download;
    }

    public void setPriority(boolean b) {
        core.setPriority(b ? 1 : 0);
    }

    public void setSkipped(boolean b) {
        core.setSkipped(b);
    }

    public int getNumericPriorty() {
        return (core.getPriority());
    }

    public int getNumericPriority() {
        return (core.getPriority());
    }

    public void setNumericPriority(int priority) {
        core.setPriority(priority);
    }

    public void setDeleted(boolean b) {
        int st = core.getStorageType();

        int target_st;

        if (b) {

            if (st == org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_LINEAR) {

                target_st = org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_COMPACT;

            } else if (st == org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_REORDER) {

                target_st = org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_REORDER_COMPACT;

            } else {

                return;
            }

        } else {

            if (st == org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_COMPACT) {

                target_st = org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_LINEAR;

            } else if (st == org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_REORDER_COMPACT) {

                target_st = org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_REORDER;

            } else {

                return;
            }
        }

        core.setStorageType(target_st);

    }

    public boolean isDeleted() {
        int st = core.getStorageType();

        return (st == org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_COMPACT || st == org.gudy.azureus2.core3.disk.DiskManagerFileInfo.ST_REORDER_COMPACT);
    }

    public void setLink(File link_destination) {
        core.setLink(link_destination);
    }

    public File getLink() {
        return (core.getLink());
    }

    // get methods

    public int getAccessMode() {
        return core.getAccessMode();
    }

    public long getDownloaded() {
        return core.getDownloaded();
    }

    public long getLength() {
        return core.getLength();
    }

    public File getFile() {
        return core.getFile(false);
    }

    public File getFile(boolean follow_link) {
        return (core.getFile(follow_link));
    }

    public int getFirstPieceNumber() {
        return core.getFirstPieceNumber();
    }

    public long getPieceSize() {
        try {
            return getDownload().getTorrent().getPieceSize();
        } catch (Throwable e) {

            Debug.printStackTrace(e);

            return (0);
        }
    }

    public int getNumPieces() {
        return core.getNbPieces();
    }

    public boolean isPriority() {
        return core.getPriority() != 0;
    }

    public boolean isSkipped() {
        return core.isSkipped();
    }

    public int getIndex() {
        return (core.getIndex());
    }

    public byte[] getDownloadHash() throws DownloadException {
        return (getDownload().getTorrent().getHash());
    }

    public Download getDownload() throws DownloadException {
        if (download != null) {

            return (download);
        }

        // not sure why this code is here as we already have the download - leaving in for the moment just in case...

        return DownloadManagerImpl.getDownloadStatic(core.getDownloadManager());
    }

    public DiskManagerChannel createChannel() throws DownloadException {
        return (new DiskManagerChannelImpl(download, this));
    }

    public DiskManagerRandomReadRequest createRandomReadRequest(long file_offset, long length, boolean reverse_order, DiskManagerListener listener)

    throws DownloadException {
        return (DiskManagerRandomReadController.createRequest(download, this, file_offset, length, reverse_order, listener));
    }

    // not visible to plugin interface
    public org.gudy.azureus2.core3.disk.DiskManagerFileInfo getCore() {
        return (core);
    }
}
